What is the domain of f(x)=9+x/(x^2) ?

The domain of f(x)=9+x/(x^2) is x 0

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domain of f(x)=9+x/(x^2)

domain

f (x) = 9 + \frac{x}{x ^{2}}

x < 0 or x > 0

Interval Notation

(- \infty, 0) \cup (0, \infty)

Solution steps

Find undefined (singularity) points:

x = 0

The function domain

x < 0 or x > 0

f (x) = x^{3} + 3 x^{2}

9 x^{2} - 16

f (x) = \frac{5 t - 1}{t ^{3} - t ^{2} - 8 t}

f (x) = 8 x^{3} - 12 x^{2} + 4

(5 - x)^{4}

What is the domain of f(x)=9+x/(x^2) ?
The domain of f(x)=9+x/(x^2) is x<0\lor x>0